Find The Right Split Point
Let’s start with the most logical and obvious lesson, shall we? One of the most interesting things that Andy Muschietti’s IT did in its approach to Stephen King’s novel was to untangle the timeline. Chapter-to-chapter, the book jumps back and forth between time periods to create a kind of parallel between the two halves of the story, but Muschietti separated the material in a natural way for his two movies in the aim of letting the two narratives exist independently in addition to collectively. Unfortunately, Frank Herbert’s Dune doesn’t have that kind of obvious line of demarcation, but choosing the right split point is crucial in this exercise, and IT demonstrates that.